Synthesis of C8-Aminated Pyrrolo-Phenanthridines or -Indoles via Series C(sp<sup>2</sup> or sp<sup>3</sup>)–H Activation and Fluorescence Study
作者:Bo-Sheng Zhang、Wan-Yuan Jia、Xue-Ya Gou、Ying-Hui Yang、Fan Wang、Yi-Ming Wang、Xi-Cun Wang、Zheng-Jun Quan
DOI:10.1021/acs.orglett.2c00318
日期:2022.3.25
This report developed a method for the synthesis of C8-aminated pyrrolo-phenanthridines or -indoles by series ortho C(sp2)–H amination/ipso C(sp2)–H or C(sp3)–H arylation. N-benzoyloxyamines, as electrophilic amination reagents, did not undergo an electrophilic substitution reaction with the pyrrole side, but they did undergo a site-selective C–H amination reaction with the benzene side via Pd/NBE catalysis
Comprehensive SummaryChiral BINAM‐derived selenide/achiral acid co‐catalyzed atroposelective electrophilic sulfenylation of pyrrole derivatives has been realized for the first time. A variety of C—N axially chiral sulfur‐containing pyrrole derivatives were readily obtained in moderate to good yields with moderate to excellent enantioselectivities. This catalytic system involves sequential desymmetrization and kinetic resolution.